Financial Institutions Inc SEC filings FIISO
Financial Institutions Inc has 1,000 filings in SEC EDGAR's recent list, going back to Dec 5, 2014. Its latest annual report, Form ARS, was filed on Apr 6, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 3, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 29, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2026 | Sep 8, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 26, 2026 | Aug 26, 2026 |
| 10-Q | Quarterly report | Aug 3, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 23, 2026 | Jun 30, 2026 |
| 11-K | Employee savings plan report | Jun 18, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 21, 2026 | May 20, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
May 20, 2026 | May 20, 2026 |
| 10-Q | Quarterly report | May 4, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 23, 2026 | Mar 31, 2026 |
| DEF 14A | Proxy statement | Apr 6, 2026 | Mar 30, 2026 |
| ARS | Annual report to shareholders | Apr 6, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 6, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 10, 2026 | Mar 4, 2026 |
| 10-K | Annual report | Mar 9, 2026 | Dec 31, 2025 |
| EFFECT | Filing | Feb 17, 2026 | — |
| 424B3 | Prospectus | Feb 17, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 12, 2026 | Feb 12, 2026 |
| CORRESP | Letter to the SEC | Feb 12, 2026 | — |
| UPLOAD | Letter from the SEC | Feb 5, 2026 | — |
| S-4 | Registration for a merger or exchange | Jan 30, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 29, 2026 | Dec 31, 2025 |
| D | Filing | Dec 17, 2025 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure, Other events
|
Dec 11, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 17, 2025 | Nov 14, 2025 |
| 10-Q | Quarterly report | Nov 3, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 23, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 22, 2025 | Sep 18, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 25, 2025 | Aug 25, 2025 |
| S-8 | Employee stock plan registration | Aug 4, 2025 | — |
| 10-Q | Quarterly report | Aug 4, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 24, 2025 | Jun 30, 2025 |
| 11-K | Employee savings plan report | Jun 18, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 29, 2025 | May 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
May 28, 2025 | May 28, 2025 |
| 10-Q | Quarterly report | May 5, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 28, 2025 | Mar 31, 2025 |
| DEFA14A | Additional proxy material | Apr 14, 2025 | — |
| DEF 14A | Proxy statement | Apr 14, 2025 | May 28, 2025 |
| ARS | Annual report to shareholders | Apr 14, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Mar 12, 2025 | Dec 31, 2024 |
| 8-K/A |
Amended current report
Results of operations, Regulation FD disclosure
|
Mar 10, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 10, 2025 | Mar 7, 2025 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Other events
|
Mar 6, 2025 | Mar 6, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 13, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 30, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 27, 2025 | Jan 22, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 12, 2024 | Dec 11, 2024 |
| 424B5 | Prospectus supplement | Dec 12, 2024 | — |
| FWP | Free writing prospectus | Dec 11, 2024 | — |
| 424B5 | Prospectus supplement | Dec 11, 2024 | — |
| EFFECT | Filing | Dec 4, 2024 | — |
| CORRESP | Letter to the SEC | Dec 2, 2024 | — |
| UPLOAD | Letter from the SEC | Nov 27, 2024 | — |
| S-3 | Shelf registration | Nov 26, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 20, 2024 | Nov 20, 2024 |
| 10-Q | Quarterly report | Nov 4, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 24, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Other events
|
Sep 16, 2024 | Sep 16, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 19, 2024 | Aug 19, 2024 |
| 10-Q | Quarterly report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 25, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Officer or director change
|
Jun 25, 2024 | Jun 19, 2024 |
| 11-K | Employee savings plan report | Jun 21, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 18, 2024 | Jun 18, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2024 | Jun 5, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
May 22, 2024 | May 22, 2024 |
| 10-Q | Quarterly report | May 6, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 25, 2024 | Mar 31, 2024 |
| ARS | Annual report to shareholders | Apr 12, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 12, 2024 | — |
| DEF 14A | Proxy statement | Apr 12, 2024 | Jun 5, 2024 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Other events
|
Apr 1, 2024 | Apr 1, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 27, 2024 | Mar 27, 2024 |
| 8-K |
Current report
Other events
|
Mar 14, 2024 | Mar 14, 2024 |
| 10-K | Annual report | Mar 13, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 11, 2024 | Mar 11, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 15, 2024 | Feb 13, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 25, 2024 | Jan 25, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure, Other events
|
Dec 8, 2023 | Dec 8, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 15, 2023 | Nov 14, 2023 |
| 10-Q | Quarterly report | Nov 6, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 26, 2023 | Oct 26, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 20, 2023 | Sep 15, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 21, 2023 | Aug 21, 2023 |
| 10-Q | Quarterly report | Aug 7, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 27, 2023 | Jul 27, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 22, 2023 | Jun 22, 2023 |
| 11-K | Employee savings plan report | Jun 21, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
May 24, 2023 | May 24, 2023 |
| 10-Q/A | Amended quarterly report | May 9, 2023 | Mar 31, 2023 |
| 10-Q | Quarterly report | May 8, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
May 1, 2023 | May 1, 2023 |
| DEFA14A | Additional proxy material | Apr 27, 2023 | — |
| ARS | Annual report to shareholders | Apr 27, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Apr 27, 2023 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 26, 2023 | Apr 26, 2023 |
| 8-K |
Current report
Other events
|
Mar 23, 2023 | Mar 23, 2023 |
| 10-K | Annual report | Mar 9, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 17, 2023 | Feb 17, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 30, 2023 | Jan 30, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 24, 2023 | Jan 24, 2023 |
| 8-K |
Current report
Other events
|
Dec 20, 2022 | Dec 20, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2022 | Nov 21, 2022 |
| 10-Q | Quarterly report | Nov 7, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 27, 2022 | Oct 27, 2022 |
| 8-K |
Current report
Officer or director change
|
Aug 22, 2022 | Aug 22, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 22, 2022 | Aug 22, 2022 |
| 10-Q | Quarterly report | Aug 8, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 28, 2022 | Jul 28, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2022 | Jun 17, 2022 |
| 11-K | Employee savings plan report | Jun 17, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Other events
|
Jun 13, 2022 | Jun 13, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
May 25, 2022 | May 25, 2022 |
| 10-Q | Quarterly report | May 9, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 27, 2022 | Apr 27, 2022 |
| DEFA14A | Additional proxy material | Apr 27, 2022 | — |
| DEF 14A | Proxy statement | Apr 27, 2022 | Jun 14, 2022 |
| 8-K |
Current report
Other events
|
Mar 23, 2022 | Mar 23, 2022 |
| 10-K | Annual report | Mar 10, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 22, 2022 | Feb 22, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 17, 2022 | Feb 17, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 31, 2022 | Jan 31, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 7, 2021 | Dec 7, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 19, 2021 | Nov 19, 2021 |
| EFFECT | Filing | Nov 12, 2021 | — |
| CORRESP | Letter to the SEC | Nov 9, 2021 | — |
| 10-Q | Quarterly report | Nov 8, 2021 | Sep 30, 2021 |
| UPLOAD | Letter from the SEC | Nov 8, 2021 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K |
Current report
Officer or director change
|
Nov 2, 2021 | Oct 27, 2021 |
| S-3 | Shelf registration | Oct 29, 2021 | — |
| S-8 | Employee stock plan registration | Oct 29, 2021 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 28, 2021 | Oct 28, 2021 |
| 8-K |
Current report
Other events
|
Oct 6, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 24, 2021 | Aug 24, 2021 |
| 10-Q | Quarterly report | Aug 9, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 29, 2021 | Jul 29, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 21, 2021 | Jun 16, 2021 |
| 11-K | Employee savings plan report | Jun 21, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
May 26, 2021 | May 26, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
May 11, 2021 | May 11, 2021 |
| 10-Q | Quarterly report | May 10, 2021 | Mar 31, 2021 |
| DEFA14A | Additional proxy material | Apr 29, 2021 | — |
| DEF 14A | Proxy statement | Apr 29, 2021 | Jun 16, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 28, 2021 | Apr 28, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 25, 2021 | Mar 21, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 16, 2021 | Mar 16, 2021 |
| 10-K | Annual report | Mar 15, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 25, 2021 | Feb 25, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 12, 2021 | Feb 8, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 29, 2021 | Jan 28, 2021 |
| EFFECT | Filing | Dec 22, 2020 | — |
| 424B3 | Prospectus | Dec 22, 2020 | — |
| CORRESP | Letter to the SEC | Dec 18, 2020 | — |
| UPLOAD | Letter from the SEC | Dec 4, 2020 | — |
| S-4 | Registration for a merger or exchange | Nov 30, 2020 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 25, 2020 | Nov 25, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 6, 2020 | Nov 6, 2020 |
| 10-Q | Quarterly report | Nov 6, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Other events
|
Nov 4, 2020 | Nov 2, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 29, 2020 | Oct 29, 2020 |
| D | Filing | Oct 15, 2020 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 7, 2020 | Oct 7, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 23, 2020 | Sep 23, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 25, 2020 | Aug 25, 2020 |
| 10-Q | Quarterly report | Aug 5, 2020 | Jun 30, 2020 |
| 8-K/A |
Amended current report
Exit or restructuring costs
|
Jul 30, 2020 | Jul 17, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 29, 2020 | Jul 29, 2020 |
| 8-K |
Current report
Exit or restructuring costs, Regulation FD disclosure
|
Jul 23, 2020 | Jul 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2020 | Jun 26, 2020 |
| 11-K | Employee savings plan report | Jun 19, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Jun 19, 2020 | Jun 17, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
May 27, 2020 | May 27, 2020 |
| DEFA14A | Additional proxy material | May 21, 2020 | — |
| DEFA14A | Additional proxy material | May 21, 2020 | — |
| 8-K |
Current report
Other events
|
May 21, 2020 | May 21, 2020 |
| 10-Q | Quarterly report | May 8, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 30, 2020 | Apr 30, 2020 |
| DEF 14A | Proxy statement | Apr 28, 2020 | Jun 17, 2020 |
| 10-K | Annual report | Mar 4, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 27, 2020 | Feb 27, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 7, 2020 | Feb 7, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 30, 2020 | Jan 30, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 26, 2019 | Nov 26, 2019 |
| 10-Q | Quarterly report | Nov 6, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 4, 2019 | Nov 4, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 29, 2019 | Oct 29, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 27, 2019 | Aug 27, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 21, 2019 | Aug 21, 2019 |
| 10-Q | Quarterly report | Aug 7, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 29, 2019 | Jul 29, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 25, 2019 | Jun 19, 2019 |
| 11-K | Employee savings plan report | Jun 24, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 19, 2019 | Jun 19, 2019 |
| 8-K |
Current report
Officer or director change
|
May 24, 2019 | May 22, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
May 22, 2019 | May 22, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
May 14, 2019 | May 14, 2019 |
| 10-Q | Quarterly report | May 8, 2019 | Mar 31, 2019 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- National Commercial Banks (SIC 6021)
- Listed as
- FISI (Nasdaq), FIISO (OTC), FIISP (OTC)
- Fiscal year ends
- December 31
- Incorporated in
- NY
- Headquarters
- Warsaw, NY
- SEC filer status
- Accelerated filer
- SEC CIK
- 862831
- Former names
- FINANCIAL INSTITUTIONS INC (until Nov 3, 2026)
Other National Commercial Banks companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.